jarvisbox

SMS Link Builder

Build sms: links with a pre-filled message body for click-to-text on mobile.

100% client-side · no upload
Settings

How to use

  1. Enter an optional phone number and your pre-filled message text.
  2. Click "Build sms: link" to generate the link.
  3. Paste the link into a button or QR code for one-tap texting.

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Frequently Asked Questions

Is this tool free to use?
Yes, completely free with no account required.
Does my data leave my device?
No. Links are generated entirely in your browser. Your phone number and message are never sent to any server.
Does it work on mobile?
Yes. sms: links open the native Messages app on iOS and Android.
Why do iOS and Android use different sms: link formats?
iOS uses "sms:+1234?&body=Hello" (ampersand before body) while Android uses "sms:+1234?body=Hello" (question mark). The tool detects your device and builds the correct format automatically.
Can I leave the phone number empty?
Yes. An sms: link without a number opens the compose screen so the user can pick a recipient themselves — useful for "text us" buttons where you want users to choose who to contact.

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